repair corrupt messed up avi file

[habmalnefrage]

Hi, I am not sure in which thread to post, therefore in the newbie section

I recorded a video with a screen capture software called Camstudio. Unfortunately the recording is corrupt and looks like this.
[Attachment 74667 - Click to enlarge]

I think the picture is self-explanatory. The video is split horizontally and vertically. The bottom should be at the top and vice versa. And the left should be right and vice versa.

It's an avi file.

Anyone an idea how to solve it? Is it perhaps a codec issue?

Thanks in advance.
regards,
kauf

[davexnet]

Can you provide a sample?

[habmalnefrage]

Thank you for your reply.

the attached video is just a sample that you can see/imagine how this video plays.

This is not the original avi-file.

I only can provide a short excerpt because of poor internet. And also have to convert it from avi to mp4 as even the excerpt has an avi-size of 3,7 gb. The original corrupt messed up file has a size of about 4 gb.


Thank you.

[davexnet]

Well a re-encoded copy is useless for determining whether there is something related to the decoding causing this problem.
Perhaps you should at least post a mediainfo report (in text view) of the file.
Whether or not it's possible to come up with a script that tracks those moving quadrants is another thing.
If they'd been still it would have been simple to crop and realign them

[poisondeathray]

Also try another media player, such as VLC, MPV .

[habmalnefrage]

Here's the mediainfo

General

Format : AVI
Format/Info : Audio Video Interleave
Format settings : BitmapInfoHeader
File size : 4.00 GiB
Duration : 1 h 8 min
Overall bit rate : 8 345 kb/s
Frame rate : 20.000 FPS
IsTruncated : Yes

Video
ID : 0
Format : RGB
Codec ID : 0x00000000
Codec ID/Info : Basic Windows bitmap format. 1, 4 and 8 bpp versions are palettised. 16, 24 and 32bpp contain raw RGB samples
Duration : 1 h 8 min
Bit rate : 234 Mb/s
Width : 1 600 pixels
Height : 900 pixels
Display aspect ratio : 16:9
Frame rate : 20.000 FPS
Color space : RGB
Bit depth : 8 bits
Bits/(Pixel*Frame) : 8.132
Stream size : 112 GiB

[davexnet]

A sample of the original file might be useful.
Open it in Avidemux, use the A and B buttons to mark off a short clip (a few seconds is enough)
save as MKV (the default)

[habmalnefrage]

I think I expressed myself incorrectly in post #3 in which I attached the mp4 excerpt. The sample clip there is extracted from the original avi-Video and just saved as mp4 file. Do you still need this clip as mkv or is the mp4 enough?

[habmalnefrage]

Also try another media player, such as VLC, MPV .

Indeed I can play it the old windows media player but as you can see in my first post it's like split and messed up. Other media players, even VLC and even after reindexing the avi header won't play this avi video.

[poisondeathray]

IsTruncated : Yes

Video
ID : 0
Format : RGB
Codec ID : 0x00000000
Codec ID/Info : Basic Windows bitmap format. 1, 4 and 8 bpp versions are palettised. 16, 24 and 32bpp contain raw RGB samples
Duration : 1 h 8 min
Bit rate : 234 Mb/s
Width : 1 600 pixels
Height : 900 pixels

It's truncated , but otherwise uncompressed RGB

Try vdub/ vdub2

[habmalnefrage]

vdub can play it but still messed up

[habmalnefrage]

A sample of the original file might be useful.
Open it in Avidemux, use the A and B buttons to mark off a short clip (a few seconds is enough)
save as MKV (the default)

Hi davexnet, it seems you did not see my #8 post https://forum.videohelp.com/threads/412196-repair-corrupt-messed-up-avi-file#post2711157 regarding a sample?

[davexnet]

That file in post#3 was cut direct from the source without re-encoding?
IT does not agree with the file details you posted in post#6

[habmalnefrage]

I am not sure if it was re-encoded. I will try to send a new short sample without re-encoding.
Thanks meanwhile

[habmalnefrage]

Unfortunately I am having an issue in saving the cropped file to mkv in Avidemux with default settings because of errors. If it helps the admlog.txt is attached.
Maybe it's because of the unknown video codec mentioned in the admlog. hm

[davexnet]

I see this, but I don't know what's wrong. DId you try saving to avi instead?

[HandleAction] 21:00:46-850 ************ SAVE_VIDEO **************
[dxvaRender::draw] 21:00:47-801 D3D : Draw!
[dxvaRender::refresh] 21:00:47-801 Refresh**
[admSaver::admSaver] 21:00:49-360 [Save] Encoder index=0
[admSaver::save] 21:00:49-360 Audio starting time 00:00:00,000
[admSaver::save] 21:00:49-360 [A_Save] Saving..
[ADM_Composer::checkCutsAreOnIntra] 21:00:49-360 Checking cuts start on keyframe..
[muxerMkv::muxerMkv] 21:00:49-360 Creating Matroska muxer.
[admSaver::setupVideo] 21:00:49-360 Simple copy mode engaged
[ADM_videoStreamCopy::ADM_videoStreamCopy] 21:00:49-361 Creating copy video stream, start time: 00:00:00,000
[ADM_videoStreamCopy::ADM_videoStreamCopy] 21:00:49-361 End time: 00:00:34,750
[ADM_Composer::getTimeBase] 21:00:49-361 Ref video 0 is frame-encoded, copy mode: 1
[ADM_Composer::getTimeBase] 21:00:49-361 Timebase set to 1 / 10
[ADM_Composer::getFrameNumFromPtsOrBefore] 21:00:49-361 Best candidate for time 00:35:43,500 in reference is frame 14344
[ADM_videoStreamCopy::ADM_videoStreamCopy] 21:00:49-361 PTS/DTS delta=0 us
[ADM_videoStreamCopy::ADM_videoStreamCopy] 21:00:49-362  Fixating start time by 0
[ADM_videoStreamCopy::ADM_videoStreamCopy] 21:00:49-362  Starting DTS=0, PTS=0 ms
[admSaver::setupAudio] 21:00:49-362 Setting up 0 audio track(s)
[FF] Muxer opened
[muxerFFmpeg::initVideo] Initial audio delay: 0 ms
[FF] Using 0 bytes for video extradata
[FF] Unknown video codec
[muxerMkv::open] 21:00:49-362 [Matroska] Failed to init video.
[dxvaRender::draw] 21:00:49-595 D3D : Draw!
[dxvaRender::refresh] 21:00:49-595 Refresh**
[muxerMkv::~muxerMkv] 21:02:47-561 Destroying Matroska muxer.

Also you can use ffmpeg to save a clip:

ffmpeg.exe -i "c:\path\source.avi" -ss 00:00:05 -t 30 -c:v copy -an clip.avi

This will save 30 seconds starting at 5 seconds offset

[habmalnefrage]

I meant these lines in the admlog:
[FF] Using 0 bytes for video extradata
[FF] Unknown video codec
[muxerMkv:pen] 21:00:49-362 [Matroska] Failed to init video.

Anyway later the day I will try to save it via Avidemux as Avi and try also to use ffmpeg.

[habmalnefrage]

@davexnet
I managed to save a short sample as avi. In Avidemux I just changed the output format to avi muxer and avi. Attached is the file as well the mediainfo.
Hope this was the right procedure and hope this helps.

[habmalnefrage]

I see this ...

https://forum.videohelp.com/threads/412196-repair-corrupt-messed-up-avi-file#post2712008

[davexnet]

I still don't know how you got uncompressed RGB. I tried Camstudio myself, it's not even one of the options.
That video cannot be fixed

[habmalnefrage]

A pity. Thanks anyway